[331] | 1 | /*
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| 2 | * Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <openssl/asn1.h>
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| 11 | #include <openssl/x509.h>
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| 12 | #include <openssl/x509v3.h>
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| 13 |
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| 14 | #include "pcy_int.h"
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| 15 |
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| 16 | static int node_cmp(const X509_POLICY_NODE *const *a,
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| 17 | const X509_POLICY_NODE *const *b)
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| 18 | {
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| 19 | return OBJ_cmp((*a)->data->valid_policy, (*b)->data->valid_policy);
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| 20 | }
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| 21 |
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| 22 | STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void)
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| 23 | {
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| 24 | return sk_X509_POLICY_NODE_new(node_cmp);
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| 25 | }
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| 26 |
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| 27 | X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *nodes,
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| 28 | const ASN1_OBJECT *id)
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| 29 | {
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| 30 | X509_POLICY_DATA n;
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| 31 | X509_POLICY_NODE l;
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| 32 | int idx;
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| 33 |
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| 34 | n.valid_policy = (ASN1_OBJECT *)id;
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| 35 | l.data = &n;
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| 36 |
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| 37 | idx = sk_X509_POLICY_NODE_find(nodes, &l);
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| 38 | if (idx == -1)
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| 39 | return NULL;
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| 40 |
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| 41 | return sk_X509_POLICY_NODE_value(nodes, idx);
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| 42 |
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| 43 | }
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| 44 |
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| 45 | X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level,
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| 46 | const X509_POLICY_NODE *parent,
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| 47 | const ASN1_OBJECT *id)
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| 48 | {
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| 49 | X509_POLICY_NODE *node;
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| 50 | int i;
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| 51 | for (i = 0; i < sk_X509_POLICY_NODE_num(level->nodes); i++) {
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| 52 | node = sk_X509_POLICY_NODE_value(level->nodes, i);
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| 53 | if (node->parent == parent) {
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| 54 | if (!OBJ_cmp(node->data->valid_policy, id))
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| 55 | return node;
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| 56 | }
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| 57 | }
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| 58 | return NULL;
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| 59 | }
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| 60 |
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| 61 | X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level,
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| 62 | X509_POLICY_DATA *data,
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| 63 | X509_POLICY_NODE *parent,
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| 64 | X509_POLICY_TREE *tree)
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| 65 | {
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| 66 | X509_POLICY_NODE *node;
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| 67 |
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| 68 | node = OPENSSL_zalloc(sizeof(*node));
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| 69 | if (node == NULL)
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| 70 | return NULL;
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| 71 | node->data = data;
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| 72 | node->parent = parent;
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| 73 | if (level) {
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| 74 | if (OBJ_obj2nid(data->valid_policy) == NID_any_policy) {
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| 75 | if (level->anyPolicy)
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| 76 | goto node_error;
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| 77 | level->anyPolicy = node;
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| 78 | } else {
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| 79 |
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| 80 | if (level->nodes == NULL)
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| 81 | level->nodes = policy_node_cmp_new();
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| 82 | if (level->nodes == NULL)
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| 83 | goto node_error;
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| 84 | if (!sk_X509_POLICY_NODE_push(level->nodes, node))
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| 85 | goto node_error;
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| 86 | }
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| 87 | }
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| 88 |
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| 89 | if (tree) {
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| 90 | if (tree->extra_data == NULL)
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| 91 | tree->extra_data = sk_X509_POLICY_DATA_new_null();
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| 92 | if (tree->extra_data == NULL)
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| 93 | goto node_error;
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| 94 | if (!sk_X509_POLICY_DATA_push(tree->extra_data, data))
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| 95 | goto node_error;
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| 96 | }
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| 97 |
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| 98 | if (parent)
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| 99 | parent->nchild++;
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| 100 |
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| 101 | return node;
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| 102 |
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| 103 | node_error:
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| 104 | policy_node_free(node);
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| 105 | return NULL;
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| 106 | }
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| 107 |
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| 108 | void policy_node_free(X509_POLICY_NODE *node)
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| 109 | {
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| 110 | OPENSSL_free(node);
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| 111 | }
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| 112 |
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| 113 | /*
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| 114 | * See if a policy node matches a policy OID. If mapping enabled look through
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| 115 | * expected policy set otherwise just valid policy.
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| 116 | */
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| 117 |
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| 118 | int policy_node_match(const X509_POLICY_LEVEL *lvl,
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| 119 | const X509_POLICY_NODE *node, const ASN1_OBJECT *oid)
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| 120 | {
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| 121 | int i;
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| 122 | ASN1_OBJECT *policy_oid;
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| 123 | const X509_POLICY_DATA *x = node->data;
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| 124 |
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| 125 | if ((lvl->flags & X509_V_FLAG_INHIBIT_MAP)
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| 126 | || !(x->flags & POLICY_DATA_FLAG_MAP_MASK)) {
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| 127 | if (!OBJ_cmp(x->valid_policy, oid))
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| 128 | return 1;
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| 129 | return 0;
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| 130 | }
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| 131 |
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| 132 | for (i = 0; i < sk_ASN1_OBJECT_num(x->expected_policy_set); i++) {
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| 133 | policy_oid = sk_ASN1_OBJECT_value(x->expected_policy_set, i);
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| 134 | if (!OBJ_cmp(policy_oid, oid))
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| 135 | return 1;
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| 136 | }
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| 137 | return 0;
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| 138 |
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| 139 | }
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